Nut-lock



UNITED 'rares arent Fines.

JAMES MLfrELFnR., or inseriva, onto.

NUT-LOCK.

SPECIFICATIGN forming part of Letters Patent No. 441,990, dated December 2, 1890. Application filed July 31, 1890. Serial No. 360,493A (No muilchl parallel sides, of which one is removable, and.

which are adapted to engage opposite sides of the nut.

The invention also consists of certain parts and details and combinations of the same, as

will be hereinafter if ull y described, and then pointed out in the claims.

Reference is to be hadto the acconnjian ying' drawings, forming a part of this specifica-tion,

iu which similar letters of reference indicate corresponding parts in all the figures.

Figure I 1s a side elevation ot the improve- 'ment as applied on fish-plates for rails. Fig.

base B, on which are erected a number et posts C, each provided on its upper end with a slightly-reduced eye D, over which passes the top bar E, resting on the top of the posts (j. Through the several eyes D on the top of the top bar E is adapted to pass a key lf, provided on one end with a head G and on` its other end with a ring, crossfpin, or other device 1l to Aprevent the key F from becoming disconnected from the eyes D. 0n the inner sides of the base B and the -top bar .E are formed longitudinally-extending ridges i3 and E', respectively, adapted to ei'lgage correspondingly-shaped grooves I', formed on the sides of the nuts I to be locked in place.

The device is used as follows: The several nuts I, after being screwed up to unite the parts for which the bolts are employed, are turned in such a manner that their` bottom and top sides are in line one with another.

The traine A for locking theseveral nuts in place has the key F and a top barEremoved, and is then placed with its hase 3 against the under side of the said nuts I, so that the longitudinal ridge or ridges I3 inthe said base engage 'the several grooves formed in the lower sides oi' the nuts l. The top bar E is then placed over the eyes I), so that the ridge E engages the corresponding grooves in the upper sides of the nuts, after which the key F is passed through the eyes D, so as to lock the top bar E in place." The key F is then secured in place by a ring, cross-pin, or other device G passed through the end of the said key, as is plainly illustrated in" Fig. I. rl`he several nuts are then locked in place, and are `prevented from turning. as two opposite sides engage ridges in the frame B. The latter is prevented from slipping ott the nuts on account of the ridges l and E engaging the grooves I in the several nuts I.

In -l and 5 the application of the lock to the nut of a single bolt is illustrated. In line with and at a suitable distance from the single bolt hold by a nut I, similar to the nuts I previously described, is made a hole J, in which is inserted a dummy bolt l, having its head gronved similarly to the nuts I. '.lhe frame A is then placed upon the nut I and head of the bolt K-the same as previously described for the two nuts I.

It will be seen that the nut-lock is very simple and durable in construction and can be readily applied on the nuts or taken oit whenever desired.

Instead ot' using the key l", padlocks or separate keys may be employed, engaging the upperends of the eyes on top of the top bars E.

Having thus fully described 'my invention, I claim as new and desire to secure by Letters Patent y l. In a nut-lock, a frame having parallel sides, of which one is removable and the two sides are adapted to engage opposite sides of the nut, substantially described.

2. A nui-lock comprising a base provided with posts projecting at right angles there from and each having an opening in its end, a bar apertured to receive the apertured ends of the posts, and a key for entering the openings to lock parts together. substantially` as described.

IOO

3. In a nut-lock, the combination, with nuts havin g grooves in their sides, of a frame provided With a base having a longitudinal ridge, and supporting a top bar also provided with a ridge to engage the grooves in the said nuts, substantially as shown and described.

4. In anut-loek', a frame comprisiuga base having longitudinal ridges, posts ereeted on thesaid base, and a top bar adapted to be secured on the said posts. and provided on its inside with longitudinal ridges, sifibstantially as shown and described.

5. mIn a put-lock, afi-ame coiuprisingn base having longitudinal ridges, posts erected on the said base, and a. top bar adapted to be secured on the said posts and provided on its inside with longitudinal ridges, and means, substantially as shown and described, for locking the said top bar in place on the said posts, as set forth,

6. In a nut-lock, the combination, with a nut provided on its sides with a continuous groove, of a frame comprising a base having Va longitudinal r a longitudinal ridge 4adapted to engage the groove in one side ot' the said uut, posts erected on the said base, and a top bar held on the said posts, provided ou its inner side with a ridge adapted to-engage thegroove in the side of the said 'nut opposite said base, substantially as shown and described.

7. In a nut-lock, the combination, with a nut provided on itsides with a continuous groove, of a frameeomprising a base having 4idg'e adapted to engage the groove in one vside of the said nut, postsn erected ou the said base,"a top bar held ou the said posts, provided on its 4inner side with a ridge adapted to engage the groove in the side of the said nut opposite said base, and means for locking the said top bar in place, substantially as shown and described.

JAMES M. TELFER. 

